13090044 has 48 divisors (see below), whose sum is σ = 33618816. Its totient is φ = 3931200.

The previous prime is 13090043. The next prime is 13090067. The reversal of 13090044 is 44009031.

It is a self number, because there is not a number n which added to its sum of digits gives 13090044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13090043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16914 + ... + 17670.

It is an arithmetic number, because the mean of its divisors is an integer number (700392).

Almost surely, 2^13090044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13090044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16809408).

13090044 is an abundant number, since it is smaller than the sum of its proper divisors (20528772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13090044 is a wasteful number, since it uses less digits than its factorization.

13090044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13090044 is about 3618.0165837099. The cubic root of 13090044 is about 235.6751011343.

Adding to 13090044 its reverse (44009031), we get a palindrome (57099075).

The spelling of 13090044 in words is "thirteen million, ninety thousand, forty-four".